CN103970331A - Touchpad - Google Patents
Touchpad Download PDFInfo
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- CN103970331A CN103970331A CN201310048376.5A CN201310048376A CN103970331A CN 103970331 A CN103970331 A CN 103970331A CN 201310048376 A CN201310048376 A CN 201310048376A CN 103970331 A CN103970331 A CN 103970331A
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- Prior art keywords
- transparent
- substrate
- trackpad
- electrode
- decorative layer
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Abstract
The invention discloses a touchpad comprising a first substrate, a transparent conductive pattern and a non-shading decorative layer. The first substrate is provided with a peripheral area. The transparent conductive pattern is arranged on the first substrate and comprises a plurality of transparent induction electrode and a plurality of transparent leads. The transparent leads are at least in part arranged in the peripheral area. Each transparent lead is correspondingly connected with at least one induction electrode. The non-shading decorative layer is arranged between the first substrate in the peripheral area and the transparent leads, and optical density of the non-shading decorative layer is smaller than or equal to 3.
Description
Technical field
The present invention relates to a kind of Trackpad, particularly a kind ofly utilizes single transparent conductive pattern in open region, to form respectively transparent induction electrode and forms around the Trackpad of transparent wire in district.
Background technology
In recent years, touch-control sensing technology develops by leaps and bounds, and such as mobile phone of many consumption electronic products (mobile phone), GPS (GPS navigator system), panel computer (tablet PC), personal digital assistant (PDA) and notebook (laptop PC) etc. all have the product of being combined with touch controllable function to release.In above-mentioned each electronic product, be mainly that original Presentation Function and touch-control sensing function are integrated and formed touch control display apparatus.To bind mutually by a display board and a Trackpad external hanging type touch-control display board forming compared with the touch control display apparatus of main flow at present.Trackpad is to distinguish in structure and can be broadly divided into biplate glass type (glass/glass) and monolithic glass formula (one glass solution, OGS) Trackpad.Monolithic glass formula Trackpad is that touch-control sensing assembly is formed directly into cover glass (cover glass) above, therefore can therefore reduce the usage quantity of substrate of glass, reaches the effect of slimming and designs simplification.
In general monolithic glass formula Trackpad, peripheral region is provided with plain conductor in order to be electrically connected with the transparent induction electrode that is positioned at open region, and peripheral region operated by rotary motion has black matrix" in order to form shaded effect, and then avoids the plain conductor of peripheral region to affect presentation quality.Because plain conductor and transparent induction electrode are formed by different materials, and also difference to some extent of conductive characteristic between the two has influence on the reliability of Trackpad therefore plain conductor and transparent induction electrode connection also the problems such as such as electrostatic breakdown easily occur.In addition, also there is in the market demand to present different appearance color effects in the peripheral region of Trackpad, and need district around that the decorative layer of non-light-proofness is set.But general non-light-blocking decorative layer easily has the problems such as the too low and light transmission of optical density is too strong, and the plain conductor of peripheral region can be identified by the human eye by non-light-blocking decorative layer, badly influences the presentation quality of Trackpad.
Summary of the invention
Object of the present invention is providing a kind of Trackpad.Utilize single transparent conductive pattern in open region, form respectively transparent induction electrode and in district, form transparent wire around, in order to the non-light-blocking decorative layer of the peripheral region of arranging in pairs or groups, and then reach the reliability that improves Trackpad and the effect of improving presentation quality.
The invention provides a kind of Trackpad.Trackpad comprises one first substrate, a transparent conductive patterns and a non-light-blocking decorative layer.The first substrate has a peripheral region.Transparent conductive patterns is arranged in the first substrate.Transparent conductive patterns comprises multiple transparent induction electrodes and many transparent wires.Transparent wire is to be arranged at least partly in peripheral region.Each transparent wire is to be connected with at least one corresponding transparent induction electrode.Non-light-blocking decorative layer is arranged between first substrate and transparent wire of peripheral region, and the optical density of non-light-blocking decorative layer (optical density, OD) is to be less than or equal to 3.
Brief description of the drawings
Figure 1 shows that the schematic diagram of the Trackpad of the first preferred embodiment of the present invention.
Figure 2 shows that the local enlarged diagram of the Trackpad of the first preferred embodiment of the present invention.
Fig. 3 is the cross-sectional schematic along A-A ' hatching line illustrates in Fig. 2.
Fig. 4 A, Fig. 4 B and Fig. 4 C are depicted as the transparent conductive patterns schematic diagram of Trackpad of the present invention.
Figure 5 shows that the schematic diagram of the Trackpad of the second preferred embodiment of the present invention.
Figure 6 shows that the schematic diagram of the Trackpad of the 3rd preferred embodiment of the present invention.
Figure 7 shows that the schematic diagram of the Trackpad of the 4th preferred embodiment of the present invention.
Wherein, description of reference numerals is as follows:
100 Trackpad 111 first substrates
111A inside surface 111B outside surface
112 second substrate 112A inside surfaces
The non-light-blocking decorative layer of 112B outside surface 120
130 bridged electrodes 140 collets
The transparent connecting line of 150 transparent conductive patterns 150C
The transparent wire of the transparent induction electrode 150T of 150S
150X first axial electrode 150Y the second axial electrode
200 Trackpad 250 transparent conductive patterns
The transparent induction electrode of 250RX signal-receiving electrode 250S
250TX signal transmits electrode 300 Trackpads
The transparent induction electrode of 350 transparent conductive patterns 350S
400 Trackpad 460 bonding coats
R2 peripheral region, R1 open region
X first direction Y second direction
Z third direction
Embodiment
Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4 A, Fig. 4 B and Fig. 4 C.Figure 1 shows that the schematic diagram of the Trackpad of the first preferred embodiment of the present invention.Figure 2 shows that the local enlarged diagram of the Trackpad of Fig. 1.Fig. 3 is the cross-sectional schematic along A-A ' hatching line illustrates in Fig. 2.Fig. 4 A, Fig. 4 B and Fig. 4 C are depicted as the transparent conductive patterns schematic diagram of Trackpad of the present invention.For convenience of description, each accompanying drawing of the present embodiment is only for signal is in order to easy understanding the present invention, and its detailed ratio can be adjusted according to the demand of design.If Fig. 1 is to as shown in Fig. 3, the present embodiment provides a Trackpad 100, and Trackpad 100 comprises one first substrate 111, a transparent conductive patterns 150 and a non-light-blocking decorative layer 120.The first substrate 111 has an open region R1 and a peripheral region R2.Peripheral region R2 is at least one side that is positioned at open region R1.The peripheral region R2 of the present embodiment is the surrounding around open region R1, but the present invention can optionally not make as limit peripheral region R2 only with the adjacent setting of part edge of open region R1.The first substrate 111 can comprise the substrate that (cover lens), cover glass (coverglass) at the bottom of hard substrate for example substrate of glass, protecting group, bendable substrate or film substrate (flexible substrate/film substrate) for example plastic cement substrate or other applicable materials form; and at the bottom of first substrate 111 of the present embodiment is preferred for a protecting group, but not as limit.Transparent conductive patterns 150 is arranged in the first substrate 111.Transparent conductive patterns 150 comprises multiple transparent induction electrode 150S and many transparent wire 150T.Transparent induction electrode 150S is mainly arranged in the R1 of open region and part extends to peripheral region R2, and transparent wire 150T is arranged in peripheral region R2 at least partly.Each transparent wire 150T is connected and integrally formed with at least one corresponding transparent induction electrode 150S.In other words, transparent conductive patterns 150 preferably forms via a transparent conductive material layer is carried out to a Patternized technique, and transparent wire 150T and transparent induction electrode 150S namely form after Patternized technique thus, and therefore transparent wire 150T and transparent induction electrode 150S be in the time forming each other figure be connected.Metal grill (metal mesh) pattern that above-mentioned transparent conductive patterns 150 also can form via a metal material layer is carried out to a Patternized technique.For instance, as shown in Fig. 4 A, Fig. 4 B and Fig. 4 C, above-mentioned metal grill pattern can comprise the continuous geometry shape storehouse that various sizes are identical or size shape is regardless of, the square shown in example argyle design, Fig. 4 B as shown in Figure 4 A or the hexagon-shaped pattern shown in rectangular patterns and Fig. 4 C.The shape of the metal grill pattern that the present invention lifts is not limited to the shape shown in Fig. 4 A, Fig. 4 B and Fig. 4 C and can optionally uses other regular shapes or erose metal grill pattern.In addition, what deserves to be explained is, the metal grill pattern that the transparent conductive patterns in follow-up each embodiment all can optionally form via a metal material layer is carried out to a Patternized technique forms.
In the present embodiment, it is integrally formed with the transparent wire 150T that is positioned at peripheral region R2 being mainly positioned at transparent induction electrode 150S that open region R1 carries out touch-control sensing and figure is connected, and transparent induction electrode 150S and transparent wire 150T are formed by same transparent conductive material, therefore the surface of contact that transparent induction electrode 150S and transparent wire 150T connection there is no between different materials exists, therefore can avoid the reliability that the electric relevant issues such as electrostatic breakdown occurs also and then improve Trackpad 100.Above-mentioned transparent conductive material layer can comprise tin indium oxide (indium tin oxide, ITO), indium zinc oxide (indium zinc oxide, IZO), aluminum zinc oxide (aluminum zinc oxide, AZO), indium oxide gallium zinc (indium gallium zinc oxide, IGZO), development or other applicable transparent conductive materials.In addition, the non-light-blocking decorative layer 120 of the present embodiment is arranged between the first substrate 111 and transparent wire 150T of peripheral region R2, and the optical density of non-light-blocking decorative layer 120 (optical density, OD) is preferably less than or equal to 3.Non-light-blocking decorative layer 120 preferably includes coloured photic resistant layer or ink, but not as limit.In particular, the first substrate 111 has an inside surface 111A and an outside surface 111B.Non-light-blocking decorative layer 120 is arranged on inside surface 111A above with transparent conductive patterns 150, and outside surface 111B can be considered a touch surface, but not as limit.The visual required color effects presenting of non-light-blocking decorative layer 120 that is positioned at peripheral region R2 is adjusted its composition content, although the optical density of non-light-blocking decorative layer 120 is to be less than or equal to 3 and cannot reach enough shaded effects, but be also pellucidity owing to being positioned at peripheral region R2 in order to be electrically connected the transparent wire 150T of transparent induction electrode 150S and external module (not shown), therefore the transparent wire 150T that can't cause peripheral region R2 by non-light-blocking decorative layer 120 by identification, therefore district R2 arranges the presentation quality that still can maintain Trackpad 100 under the situation of non-light-blocking decorative floor 120 around.
Further illustrate, the non-light-blocking decorative layer 120 of the present embodiment preferably directly contacts with the inside surface 111A of the first substrate 111, and transparent wire 150T preferably directly contacts non-light-blocking decorative layer 120, but not as limit.In particular, the transparent induction electrode 150S of the present embodiment comprises multiple the first axial electrode 150X, multiple the second axial electrode 150Y and multiple transparent connecting line 150C.In other words, the first axial electrode 150X, the second axial electrode 150Y, transparent connecting line 150C and transparent wire 150T form via same transparent conductive material layer is carried out to Patternized technique.The first axial electrode 150X arranges along a first direction X, and each the first axial electrode 150X is image separation each other.The second axial electrode 150Y arranges along a second direction Y, and upper two the second adjacent axial electrode 150Y of second direction Y are that figure is connected and is integrally formed each other.First direction X is preferably substantially perpendicular to second direction Y, but not as limit.Each transparent connecting line 150C is arranged between upper the second adjacent axial electrode 150Y of second direction Y, also integrally formed in order to be connected with the second adjacent axial electrode 150Y figure on second direction Y.What deserves to be explained is, each transparent connecting line 150C is connected also integrally formed with the second corresponding axial electrode 150Y and transparent wire 150T figure.In addition, Trackpad 100 can also comprise multiple bridged electrodes 130 and multiple collets 140.Bridged electrodes 130 is arranged in the R1 of open region, and each bridged electrodes 130 is that the first axial electrode 150X adjacent with two contacts, in order to be electrically connected two the first adjacent axial electrode 150X.Bridged electrodes 130 can comprise transparent conductive material for example tin indium oxide, indium zinc oxide, aluminum zinc oxide, indium oxide gallium zinc and development or other for example composite bed of silver, aluminium, copper, magnesium, molybdenum, above-mentioned material of nontransparent conductive material or alloys of above-mentioned material being applicable to, but not as limit.Collets 140 are arranged in the R1 of open region, and each collets 140 are arranged between corresponding bridged electrodes 130 and transparent connecting line 150C, isolate corresponding bridged electrodes 130 and transparent connecting line 150C in order to electricity.Because upper two the second adjacent axial electrode 150Y of second direction Y are that figure is connected and is integrally formed each other, therefore also can say that each collets 140 are arranged between corresponding bridged electrodes 130 and the second axial electrode 150Y.Collets 140 can comprise for example titanium dioxide (TiO of oxide
2) and monox (SiO
x), for example silicon nitride (SiN of nitride
x) or other applicable insulating material.In other words, bridged electrodes 130, collets 140 and transparent conductive patterns 150 can sequentially be formed on the inside surface 111A of the first substrate 111, but not as limit.Each collets 140 preferably one perpendicular to the third direction Z of the first substrate 111 on part cover corresponding bridged electrodes 130, and the region that makes not to be insulated the bridged electrodes 130 that piece 140 covers can contact and form electrical connection with the first axial electrode 150X of follow-up formation.
What deserves to be explained is, Trackpad of the present invention preferably can harden and close and form a touch control display apparatus with a display board (not shown) for example a LCD panel, an Organic Light Emitting Diode (OLED) display board, electricity moistening (electro-wetting) display board, an electric ink (e-ink) display board, a plasma (plasma) display board or a Field Emission Display (FED), but not as limit.
Below the difference for Trackpad of the present invention is implemented to sample state and describe, and be simplified illustration, below explanation is described in detail mainly for the different part of each embodiment, and no longer identical part is repeated.In addition, in various embodiments of the present invention, identical assembly is to indicate with identical label, checks one against another between each embodiment in order to convenient.
Please refer to Fig. 5.Figure 5 shows that the schematic diagram of the Trackpad of the second preferred embodiment of the present invention.As shown in Figure 5, the present embodiment provides a Trackpad 200, the places different from above-mentioned the first preferred embodiment are, Trackpad 200 comprises a transparent conductive patterns 250, and transparent conductive patterns 250 comprises multiple transparent induction electrode 250S and multiple transparent wire 150T.Each transparent induction electrode 250S is arranged in the R1 of open region and each other and separates.Each transparent wire 150T is connected and integrally formed with at least one corresponding transparent induction electrode 250S.In addition, transparent induction electrode 250S can also comprise that multiple signals transmit electrode 250TX and multiple signal-receiving electrode 250RX, respectively in order to transmit touch-control sensing signal and to receive touch-control sensing signal.In other words, Trackpad 200 can be in order to carry out a mutual capacitance type (mutualcapacitive) touch-control sensing, but not as limit.The Trackpad 200 of the present embodiment is except signal transmits electrode 250TX and signal-receiving electrode 250RX, and feature, setting position and the material behavior of all the other each parts is similar to above-mentioned the first preferred embodiment, therefore at this and repeat no more.
Please refer to Fig. 6.Figure 6 shows that the schematic diagram of the Trackpad of the 3rd preferred embodiment of the present invention.As shown in Figure 6, the present embodiment provides a Trackpad 300, the places different from above-mentioned the first preferred embodiment are, Trackpad 300 comprises a transparent conductive patterns 350, and transparent conductive patterns 350 comprises multiple transparent induction electrode 350S and multiple transparent wire 150T.Each transparent induction electrode 350S is arranged in the R1 of open region and each other and separates.Each transparent wire 150T is connected and integrally formed with at least one corresponding transparent induction electrode 350S.In addition preferably disconnected from each other being arranged in the R1 of open region in order to carry out touch-control sensing detection of transparent induction electrode 350S.A preferably rectangular electrode of each transparent induction electrode 350S of the present embodiment, but the present invention can optionally not use for example leg-of-mutton induction electrode arranged distribution of difformity in the R1 of open region, to detect effect in order to reach required touch-control sensing as limit.
Please refer to Fig. 7.Figure 7 shows that the schematic diagram of the Trackpad of the 4th preferred embodiment of the present invention.As shown in Figure 7, the present embodiment provides a Trackpad 400, and the places different from above-mentioned the first preferred embodiment are, Trackpad 400 also comprises one second substrate 112 and a bonding coat 460.The second substrate 112 is and the corresponding setting of the first substrate 111, and transparent conductive patterns 150 and non-light-blocking decorative layer 120 are arranged between the first substrate 111 and the second substrate 112.Bonding coat 460 is arranged between the first substrate 111 and the second substrate 112, in order to bind the first substrate 111 and the second substrate 112.At the bottom of the second substrate 112 can comprise hard substrate for example substrate of glass, protecting group, the substrate that forms of cover glass or for example plastic cement substrate of bendable substrate/film substrate or other applicable materials.In addition, the second substrate 112 can have an inside surface 112A and an outside surface 112B, and the inside surface 112A of the second substrate 112 is in the face of the inside surface 111A of the first substrate 111.Therefore, Trackpad 400 can optionally be defined as a touch surface by surperficial 112B outside surperficial 111B outside the first substrate 111 or the second substrate 112.What deserves to be explained is, the second above-mentioned preferred embodiment and the 3rd preferred embodiment also can optionally arrange the second substrate and bonding coat, but not as limit.
Comprehensive the above, Trackpad of the present invention is to utilize single transparent conductive pattern in open region and peripheral region, to form respectively transparent induction electrode and transparent wire, namely making each transparent wire and corresponding transparent induction electrode is that mutual figure is connected and integrally formed, can reach whereby the effect of simplified manufacturing technique, and can avoid generally forming respectively wire and induction electrode by different materials by this integrally formed mode time contingent electrical ties bad with the situation such as integrity problem.In addition, transparent wire of the present invention can be in order to the non-light-blocking decorative layer of the peripheral region of arranging in pairs or groups, and then reaches the effect of improving presentation quality under the situation that non-light-blocking decorative layer is set.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a Trackpad, is characterized in that, comprising:
One first substrate, has a peripheral region;
One transparent conductive patterns, is arranged in this first substrate, and this transparent conductive patterns comprises:
Multiple transparent induction electrodes; And
Many transparent wires, are arranged in this peripheral region at least partly, and wherein respectively this transparent wire is to be connected with at least one corresponding this transparent induction electrode; And
One non-light-blocking decorative layer, is arranged between this first substrate and those transparent wires of this peripheral region, and wherein the optical density of this non-light-blocking decorative layer is to be less than or equal to 3.
2. Trackpad according to claim 1, is characterized in that, respectively this transparent wire is integrally formed with at least one corresponding this transparent induction electrode.
3. Trackpad according to claim 1, is characterized in that, this non-light-blocking decorative layer includes coloured light and causes resistant layer or ink.
4. Trackpad according to claim 1, is characterized in that, this transparent conductive patterns is to be metal grill pattern.
5. Trackpad according to claim 1, is characterized in that, at the bottom of this first substrate comprises a protecting group or a cover glass.
6. Trackpad according to claim 1, is characterized in that, those transparent induction electrodes comprise that multiple signals transmit electrode and multiple signal-receiving electrode, respectively in order to transmit touch-control sensing signal and to receive touch-control sensing signal.
7. Trackpad according to claim 1, is characterized in that, those transparent induction electrodes comprise:
Multiple the first axial electrode, arrange along a first direction, and wherein respectively this first axial electrode is image separation each other;
Multiple the second axial electrode, arrange along a second direction, and wherein in this second direction, two those adjacent second axial electrode are that figure is connected and is integrally formed each other;
Multiple bridged electrodes are that those first axial electrode adjacent with two contact; And
Multiple collets, are arranged between corresponding this bridged electrodes and this second axial electrode.
8. Trackpad according to claim 1, is characterized in that, also comprises one second substrate, setting corresponding to this first substrate, and wherein this transparent conductive patterns and this non-light-blocking decorative layer are arranged between this first substrate and this second substrate.
9. Trackpad according to claim 1, is characterized in that, this first substrate comprises a bendable substrate or a film substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048376.5A CN103970331A (en) | 2013-02-06 | 2013-02-06 | Touchpad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048376.5A CN103970331A (en) | 2013-02-06 | 2013-02-06 | Touchpad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103970331A true CN103970331A (en) | 2014-08-06 |
Family
ID=51239926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310048376.5A Pending CN103970331A (en) | 2013-02-06 | 2013-02-06 | Touchpad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103970331A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824444A (en) * | 2015-01-07 | 2016-08-03 | 群创光电股份有限公司 | Touch control display device |
| CN108475557A (en) * | 2016-01-26 | 2018-08-31 | 东友精细化工有限公司 | Transparent electrode and electronic device including it |
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Application publication date: 20140806 |